cros: Clean up screenlockPrivate plumbing.

chrome/browser/chromeos/login/screen_locker_delegate.h

Index: chrome/browser/chromeos/login/screen_locker_delegate.h
diff --git a/chrome/browser/chromeos/login/screen_locker_delegate.h b/chrome/browser/chromeos/login/screen_locker_delegate.h
index 3d7a2d27e3daf8a1f2906cb3def8f361c46b9009..406367a2f5ec7fd7b7c03efe29a0e62661801b1a 100644
--- a/chrome/browser/chromeos/login/screen_locker_delegate.h
+++ b/chrome/browser/chromeos/login/screen_locker_delegate.h
@@ -45,26 +45,6 @@ class ScreenLockerDelegate {
   // Enable/disable password input.
   virtual void SetInputEnabled(bool enabled) = 0;
 
-  // Displays a banner containing |message| on the lock screen.
-  virtual void ShowBannerMessage(const std::string& message) = 0;
-
-  // Shows a button inside the user pod on the lock screen with an icon.
-  virtual void ShowUserPodButton(const std::string& username,
-                                 const std::string& iconURL,
-                                 const base::Closure& click_callback) = 0;
-
-  // Hides the user pod button for a user.
-  virtual void HideUserPodButton(const std::string& username) = 0;
-
-  // Set the authentication type to be used on the lock screen.
-  virtual void SetAuthType(const std::string& username,
-                           LoginDisplay::AuthType auth_type,
-                           const std::string& initial_value) = 0;
-
-  // Returns the authentication type used for |username|.
-  virtual LoginDisplay::AuthType GetAuthType(const std::string& username)
-      const = 0;
-
   // Disables all UI needed and shows error bubble with |message|.
   // If |sign_out_only| is true then all other input except "Sign Out"
   // button is blocked.